Long Description of Sighting Report

I was proceeding from the a9 road heading toward the town of Aberfeldy in perth and Kinross county , the time was 5mins past 10pm. About a mile before the junction just outside the village of Grandtully I noticed a what i thought was a series of street lights zig-zagging up a steep hill up ahead. having travelled this road many times i could not recall such a feature in landscape or road and thought it very odd. I then considered maybe it was a bright constallation but the lights were totally unlike stars bieng orange in colour slightly elongated as fog street lights are. hense my foremost impression. The further i travelled the more curious I became finally pulling to a stop on the roadside. I noticed a car on the opposite side also parked with its occupant staring up at the sky. i then thought it to be a fleet of helicopters, but there was no sound and no tail lights or otherwise common to aircraft to be seen. Once i had stopped my vehicle i then realised these objects were travelling toward me keeping formation about ten in total not too fast but not slow. I turned the car around at the oncomming junction about 50yrds distance to follow the lights but by the short time it took I looked back and they had vanished.